The far-infrared reflectivity spectra of three HgTe-CdTe superlattices from two sources [HgTe/CdTe thicknesses (Ã…/Ã…): 64/26, 7/35, 32/57] have been measured at 300, 77, and 6 K. Analysis of transverse optical phonon structure between 80 and 180 cm-1 with different alloying models shows that the first of these superlattices contains HgTe and CdTe with no evidence of significant mixing, whereas the others contain HgTe and homogeneous Hg1-xCdxTe. An earlier study of the HgTe-CdTe band gap also indicated homogeneous alloying. The reflectivity data were analyzed with a superlattice dielectric function which is shown to be valid in the far infrared.

Presents a study which determined free-carrier effective masses in mercury telluride-cadmium telluride superlattices using measurements of oscillatory magnetoresistance. Agreement of the study findings with the predictions of band-structure theory; Details of the Shubnikov-de Haas oscillations...

Measurement of the optical transmission spectra of four HgTe/CdTe superlattices grown by molecular beam epitaxy has been carried out at 300 and 30 K to determine the absorption coefficients, refractive indexes, and band-gap energies. In ail cases the optical absorption coefficients reached high...

We report details of the successful growth by molecular beam epitaxy of superlattices containing alternating layers of Hg1-xMnxTe and HgTe. These structures are the first superlattices containing layers of a mercury-based dilute magnetic semiconductor (Hg1-xMnxTe ) to be grown by any thin-film...

For the first time, small-period epitaxial superlattices were grown using plasma-enhanced chemical vapor deposition. The superlattices were periods of HgTe-CdTe grown on CdTe substrates at 150 Â°C using dimethylcadmium, dimethylmercury, and dimethyltelluride. Cross-section transmission...

Mercury telluride is shown to have the largest known third-order nonlinear optic susceptibility with response time in the picosecond range. At 10.6 Î¼m and T=300 K, Ï‡(3)=1.6Ã—10-4 esu. The response time, estimated from the dispersion of Ï‡(3), is 5 ps. The effect is attributed to...

Epitaxial layers of mercury telluride were deposited onto cadmium telluride substrates at 85 Â°C using a glow discharge to enhance the reaction between dimethylmercury and dimethyltelluride. Hall-effect measurements showed the material to be n type with room-temperature and 77 K carrier...

Presents calculations of the band gap and of the corresponding cutoff wavelength of mercury telluride-cadmiumtelluride superlattices. Use of an envelope function approximation to calculate the superlattice band structure and a resulting band gap; Calculations of the band gap and of the cutoff...

Investigates silver diffusion into n-type (mercury,cadmium) telluride. Examination of the phenomenon of self restoration of p-n junctions; Invocation of additional stabilizing interactions between dopants; Inconsistence of the behavior with pure kinetic stabilization of the junctions.